refresher.init({
    id:"wrapper",
    pullDownAction:Refresh,                                                            
    pullUpAction:Load                                                                             
    });    
    function Refresh() {       
    // <-- Simulate network congestion, remove setTimeout from production!
        wrapper.refresh();/****remember to refresh after  action completed！ --example-yourId.refresh(); ----| ****/
    } 
     
    function Load() {
    // <-- Simulate network congestion, remove setTimeout from production!
    wrapper.refresh();/****remember to refresh after action completed！！！   -example--yourId.refresh(); --- ****/
    }